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Chapters ENES DE

03Diseases of the blood or blood-forming organs
Anaemias or other erythrocyte disorders
Nutritional or metabolic anaemias

3A02 category

Folate deficiency anaemia

7 subordinate codes

3A02.0Hereditary folate deficiency anaemia
3A02.1Folate deficiency anaemia due to low intake
3A02.2Folate deficiency anaemia due to increased requirements
3A02.3Folate deficiency anaemia due to decreased intestinal absorption
3A02.4Drug-induced folate deficiency anaemia
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Nearby in Nutritional or metabolic anaemias

3A00Iron deficiency anaemia
3A01Megaloblastic anaemia due to vitamin B12 deficiency
3A03Certain nutritional or metabolic anaemias
4B4ZDiseases of the immune system, unspecified

Previous3A01 — Megaloblastic anaemia due to vitamin B12 deficiency Next3A03 — Certain nutritional or metabolic anaemias

Browse ICD-11

01Certain infectious or parasitic diseases
02Neoplasms
03Diseases of the blood or blood-forming organs
04Diseases of the immune system
05Endocrine, nutritional or metabolic diseases
06Mental, behavioural or neurodevelopmental disorders
07Sleep-wake disorders
08Diseases of the nervous system
09Diseases of the visual system
10Diseases of the ear or mastoid process
11Diseases of the circulatory system
12Diseases of the respiratory system
13Diseases of the digestive system
14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
17Conditions related to sexual health
18Pregnancy, childbirth or the puerperium
19Certain conditions originating in the perinatal period
20Developmental anomalies
21Symptoms, signs or clinical findings, not elsewhere classified
22Injury, poisoning or certain other consequences of external causes
23External causes of morbidity or mortality
24Factors influencing health status or contact with health services
25Codes for special purposes
26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
3A00-3A9ZAnaemias or other erythrocyte disorders
3B10-3B6ZCoagulation defects, purpura or other haemorrhagic or related conditions
3B80-3B8ZDiseases of spleen
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
3A00-3A0ZNutritional or metabolic anaemias
3A10-3A4ZHaemolytic anaemias
3A50Thalassaemias
3A51Sickle cell disorders or other haemoglobinopathies
3A60-3A6ZPure red cell aplasia
3A70Aplastic anaemia
3A71Anaemia due to chronic disease
3A72Sideroblastic anaemia
3A73Congenital dyserythropoietic anaemia
8 more
3A00Iron deficiency anaemia
3A01Megaloblastic anaemia due to vitamin B12 deficiency
3A02Folate deficiency anaemia
3A03Certain nutritional or metabolic anaemias
4B4ZDiseases of the immune system, unspecified
3A02.0Hereditary folate deficiency anaemia
3A02.1Folate deficiency anaemia due to low intake
3A02.2Folate deficiency anaemia due to increased requirements
3A02.3Folate deficiency anaemia due to decreased intestinal absorption
3A02.4Drug-induced folate deficiency anaemia
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).

Release 2026-01. View this entity in the official WHO ICD-11 browser.

This page reproduces WHO classification content for reference. It is not medical advice and must not be used to diagnose or treat. For coding decisions, consult the official release and your national coding guidelines.

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